Filter trap



April 27 1926.

1,582,859 N. N. SHEPHERD FILTER TRAP Filed Oct. 15, 1923 ATTORNEYSPatented Apr. 27, 19 26.

UNITED STATES PATENT OFFICE.

NOBLE NYE SHEPHERD, 0F INDIANAPOLIS, INDIANA. ASSIGNOR TO INDIANAPOLISSCREW PRODUCTS COMPANY, 01 INDIANAPOLIS, INDIANA, A CORPORATION.

FILTER TRAP.

Application filed October 15, 1923.

To all whom it may concern:

Be it known that I, Nouns NYE SHEPHERD, a citizen of the United States,and a resident of Indianapolis, county of Marion, and State of Indiana,have invented a certain new and useful Filter Trap; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, in which likenumerals refer to like parts.

This invention relates to a filter trap for the fuel supply to acarburetor.

The chief object of this invention is to provide a filter constructionwhich is interposed in the fuel supply line ahead of the carbureter sothat sediment and foreign matter, and in some instances water, will beseparated from the liquid fuel before the same enters the carburetor,thereby not only insuring non-interference with the carbureter action,but also increased efficiency, due to the purity of the fuel.

The chief feature of the invention consists in the construction of thefilter trap.

The full nature of the invention will be understood from theaccompanying drawings and the following description and claims.

In the drawings, Fig. 1 is a side elevationa], view of a carburetor, afuel supplying line therefor, and the invention interposed in said fuelsupplying line ahead of the carbureter. Fig. 2 is a central sectionalview through the filter construction.

In the drawings 10 indicates a fuel supplying line, whichinay beunderstood comes from a fuel containing tank. A conduit 11 connectswith'the carbureter 12, said carbureter discharging through the intakepipe 13 to an internal combustion engine not shown. The conduits 10 and11 are in communication with each other by means of a filter trapconstruction which is detachably associated with said conduits by theseveral coupling constructions llOand 111 respectively.

The filter trap construction consists of a cylindrical body portion 14which is reduced at 15 and forms an annular shoulder. Projectingupwardly therefrom is another body portion 16. and an opening 17 isadapted to receive a nipple 18 which may be spun therein, or otherwisesuitably secured thereto. Herein the trap is illustrated as ofcylindrical form, and axially positioned within the top 19 isan opening20. The opening 20 Serial No. 868,589.

is adapted. to receive a hollow stem 21 having a shoulder 22 forengagement upon the walls of the opening. The projecting end of the tube21 is upset, as at 23, to form a firm and fluid-tight joint. Other meansof connection may be provided, however, as desired. The connection 110is receivable by the tube 21; while the nipple 18 is receivable by theconnection 111. The lower end of the cylindrical body portion 14 isprovided with an outwardly projecting periph eral flange 2 1. Adish-shaped closure 25 having a flange 26 for telescopically receivingthe flange 24 is adapted to close the body portion 14 by suitable means.The central portion of the dish-shaped bottom 25 is apertured at 27 andthe walls thereof are spun outwardly, as at 28, to form a seat.

The tube 21 extends axially through the body portions 16 and 14 andterminates as herein shown beyond the body portion 14 and within thedish-shaped portion of the bottom 25. The lower end of the tube 21 isthreaded, as at 29, and is adapted to receive the threaded end 30 of aclosure plug 31 having a tapered seat 32 for engagement with the seat 28in the closure 25. Suitable means, such as the projecting pin portions33 upon theplug 31, are provided for turning said plug into the tube soas to seat the plug in the seat 28, and also secure a fluidtight jointbetween the flanges 24 and 26.

Herein a packing member in the form of an annular ring 34 also assistsin securing a fluid-tight joint between said flanges.

Herein the tube 21 is suitably aperturcd in one or more places, as at35. The tube 21 is provided with a shoulder 36 which lies in about thesame plane as the annular shoulder 15. Detachably supported upon saidtube and concentric therewith is a bushing which is recessed at 38 toreceive an annular screen 39. the outer peripheral edge of which isprotected by a clamping ring 40. The ring 40 is cngageable upon the angeor shoulder 15, and thus the body portion 16 is separated from the bodyportion 15 by the screen or strainer 39. The means for maintaining thesleeve 37 in the elevated position, abutting the shoulder 36 of the tube31, comprises a coiled spring 41 which has one end secured to saidsleeve by engaging in a groove 42 adjacent the groove 38 in saidbushing. The lower end of the coiled spring 41 is seatable upontheclosure 25.

' chamber beneath the strainer 39. The

' fined by a lVith the foregoing construction the fuel is supplied tothe tube 21 and discharges through the apertures or ports 35 into dthgagain changes direction and passes upwardly and outwardly through thenipple 18 to the carbureter 12 by means of the line 11. \Vith theforegoing changes in direction, the sediment in the original fuel is notonly separated by said changes in direction, but also by the screen 39;and said screen also is adapted to separate the water from the liquidfuel in the well known manner. When it is desired to clean'the filtertrap construction, the plug 31 is removed from the tube 21 and thebottom 25 may thereupon be removed, thus permitting the water and thesediment collected in the bottom 25 to be removed therefrom. Likewisethe screen 39 may be removed and cleansed. Furthermore, with the removalof the threaded portion 30 from the end of the tube 29, said tube alsomay be cleansed.

The invention claimed is:

1. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end, said body having a laterally directedflange defining the open end, the closed end forming a head integralwith the body and including a central opening, said body having anotheropening adjacent the first mentioned opening, a screen Within the body,a readily removable cap for closing said open end of the body, said capbeing rovided with a peripherally flanged edge i or receiving theflanged end of the body, and tubular means seated in the central openingand forming part of a channel from the same to the other opening saidmeans extending thru the body for securing said body and cap togetherand supporting said screen. 1

2. A device of the character defined by claim 1 characterized by theaddition of gasket means interposed between the lateral flange and theperipheral edge and receiv-- able by the latter for securing fluid tightjoint therebetween.

3. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end, said body having a lateral- 1y directedflange defining the open end, the closed end forming a head integralwith t 1e body and including an opening, said bot y having anotheropening adjacent the first mentioned opening, a peripheral flange formedintermediate the ends of said body, a transversely positioned screenengageable upon the intermediate flange for seating purposes, and a capfor closing said open end including an annular peripheral seatdeeripherally extending flange for telesco icaily receiving and seatingthe flange open end.

4. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end, said body having a laterally directedflange defining the open end, a head integral with the body andincluding an opening, said body having another opening adjacent thefirst mentioned opening and a peripheral flange formed intermediate theends of said body, a transversely positioned screen engageable upon saidintermediate flange for seating purposes, said screen being providedwith an aperture therein, operative means extending through the body andthrough the screen aperture, said operative means including a stop, saidscreen aperture receiving said operative means, said stop thereoflimitin the movementof the screen thereon, and a cap for closing saidopen end includin a peripheral seat defined by a peripherally extendingflange for telescopically receiving and seating the flanged open end andsecured by said operative means to said body.

5. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end, a peripheral flange interanediate theends of the body, a transversely positioned screen engageable upon saidintermediate flange for seating purposes and being provided with anaperture, peripheral means definin said aperture, a cap closing saidopen end and secured to said body, spring means having one end bearableupon the cap and the other end secured to said aperture definingperipheral means, and tubular channel forming means extending throughthe body and having a lateral openin intermediate the ends and forsecuring said body and cap together, said screen aperture defining meansbeing slidably associated with said tubular channel forming means. i

6. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end, a peripheral flange intermediate theends of the body, a transversely positioned screen engageable upon saidintermediate flange for seating purposes and being provided with anaperture, peripheral means definin" said aperture, a cap closing saidopen end and secured to said body, spring means having one end bearableupon the cap and the other end secured to said aperture definingperipheral means, tubular channel forming means extending through thebody and having a lateral opening intermediate the ends and for securingsaid body and cap together, said screen aperture defining means beingslidably associated'with said tubular channel forming means, and stopmeans on the channel forming means for limiting the sliding movement ofsaid screen.

7. In a filter tra construction, the combination of a tubu ar bodyhaving a head integral therewith, a peripheral flange formedintermediate the ends of said body,

a transversely positioned screen engageable upon said intermediateflange for seating purposes, said screen being provided with a centralaperture therein, tubular channel forming means extending centrallythrough the body and slidable through the screen aperture, a stop onsaid channel means limiting the sliding movement of said screen, and acap for closing the open end including a peripheral seat for seating thebody open end and secured by said tubular channel forming means to saidbody.

8. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end and having inlet and outlet openingstherefor, a peripheral flange formed intermediate the ends of said body,a trans versely positioned screen engageable upon said intermediateflange for seating purposes and being provided with an aperture, saidbody having a laterally directed flange defining the open end, a cap forclosing said open end and secured to said body and including aperipheral seat defined by a pcripherally extending flange fortelescopically receiving and for seating the flanged open end of saidbody, spring means having an end bearable upon the cap and the other endsecured to said transversely positioned screen and operative meansextending through the body for securing said body and cap together andreceivable by the screen aperture.

9. In a filter trap construction, the combination of a tubular bodyhaving a closed and an open end, a head integral with the body andincluding an opening, said body having another opening adjacent thefirst mentioned opening, a screen, a centrally aperturcd cap for closingsaid open end of thebody, a hollow member open at both ends and providedwith a lateral opening communicating with the interior of the tubularbody positioned in said head opening and extending toward the open endof the body, and a plug seatable in said cap aperture and extendingtoward the head for end to end engagement with the hollow member, saidmember and plug extending entirely through the body and cap for securingthem together.

10. In a filter trap construction, the com bination of a body having aclosed and an open end, a closure for said open end, a screen thereinforming two superposed chambers having communication with each otheronly through said screen. said body having inlet and outlet openings inthe same chamber, and channeled means connected to one of said openingsfor discharging directly into the other chamber and extending throughsaid screen for securing said closure and body together, a screen seaton said channeled means, and a spring between the screen and the closureand within the body for maintaining said screen on said seat.

11. In a filter trap construction, the combination of a normally rigidlyunited but separable body including a head portion having an intake andan outlet and an apertured closureportion, a screen member positioned inthe body and forming two chambers having communication with each otheronly through the screen, the intake and outlet each communicating with adifferent chamber and with each other only through said screen, a coilspring interposed between said screen member and said closure portion,and threadedly connected means separable within the separable body.extending thru the screen and secured to the head portion and extendingthru the closure portion with an exposable portion without the body formanual manipulation for securing the separable body in rigid relationand for simultaneously positioning said spring for seating said screen.12. A device of the character as defined by claim 11 characterized bythe portion of the threadedly connected means secured to the headportion, including a channel connecting the intake to one of thechambers.

13. In a filter trap construction, the combination of a normally rigidlyunited but separable body including a head portion having an intake andan outlet and an apertured closure portion, a screen positioned in thebody and forming two chambers having communication with each other onlythru the screen, the intake and outlet each communicating with adifi'erent chamber and with each other only thru said screen, an annularretainer secured to an edge of said screen for seating purposes, anotherannular edge retainer having a central opening and an adjacent bearingportion, yielding means interposed between the second mentioned annularretainer and said-closure portion for maintaining said first mentionedannular retaincr seated, and threadedly connected means extending thruthe screen and said annular edge retainers and connecting said headportion to said closure portion for securing the separable body in rigidrelation, said threadedly connected means having a portion exposablewithout the closure portion for manual manipulation.

14. A device of the character as defined by claim 13, characterized bythe yielding means being a coil spring and threadedly connected meansextending centrally into the same for positioning said spring andseating said screen.

15. In a filter trap construction, the combination of a normally rigidlyunited but separable body including a head portion having an intake andan outlet and an apertured closure portion, a screen member positionablein the body and forming two chambers therein having communication witheach other onl through the screen the intake and outlet each directlycommunicating with a different chamber and with each other only throughsaid screen, a coil spring interposed Between said screen member andsaid closure portion, said screen being annular and including a centralaperture, the closure portion also being annular and including anaperture, said apertures lEQlIlQ in alignment with each other and withthe spring axis included therein. and threaded connected means passingthrough said closure and screen apertures and positionable within saidspring and connected to the head portion and having an exposable portionextending without the body for manual manipulation, said threadedconnected means securing said closure and head portion in rigid and leakproof body formation and simultaneously maintaining said screen in leakproof seated arrangement.

In Witness whereof, I have hereunto affixed my signature.

NOBLE NYE SHEPHERD.

other only through the screen, the intake and outlet each directlycommunicating with a different chamber and with each other only throughsaid screen, a coil spring interposed between said screen member andsaid closure portion, said screen being annular and including a centralaperture, the closure portion also being annular and including anaperture, said apertures being in alignment with each other and with thespring :zxis included therein, and threaded connected means passingthrough said closure and ,NOBLE NYE SHEPHERD.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,582,859,

granted April 27,

1926, upon the application of Noble Nye Shepherd, of Indianapolis,Indiana, for an improvement in Filter Traps,

an error appears in the printed specification requiring correction asfollows: Pa e 2, line 68, claim 4, after the comma following the wordend insert the close and fmmz'nand that the said Letters Patent shouldbe read with this correction therein that t e same may conform to therecord of the case in the Patent Ofiice.

Signed and sealed this 1st day of June, A. D. 1925.

' M. J. MOORE, Acting Commissioner of Patents.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,582,859, grantedApril 27, 1926, upon the application of Noble Nye Shepherd, ofIndianapolis, Indiana, foran improvement in Filter Traps, an errorappears in the printed specification requiring correction as follows: Pae 2, line 68, claim 4, after the comma, following the word end insertthe close; end formin and that the said Letters Patent should be readwith this correction therein that t e same may conform to the record ofthe case in the Patent Ofliee.

Signed and sealed this 1st day of June, A. D. 1926.

[sun] M. J. MOORE,

Acting Commissioner of Patents.

